Ampt, LLC

37 patents currently held · Updated Nov 14, 2026

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Ending by 2030

Mar 2028

Next term end

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.

2 fees due Dec 18, 2026
1 fee due Sep 30, 2027
The maintenance fee for Feedback based photovoltaic conversion systems (US 10,608,437) comes due Sep 30, 2027. Unpaid by Mar 31, 2028, it lapses early.
1 fee due Oct 23, 2027
The maintenance fee for Phased Solar Power Supply System (US 11,967,653) comes due Oct 23, 2027. Unpaid by Apr 24, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

2 of the patents on this record were granted since Aug 16, 2026

Patents held now

Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.

Patent	Title	Status	Expires	Confidence
US 7,719,140	Systems for boundary controlled solar power conversion In force Ends no later than Mar 14, 2028 · From the USPTO record	In force	Ends no later than Mar 14, 2028	From the USPTO record
US 7,843,085	Systems for highly efficient solar power In force Ends no later than Mar 14, 2028 · From the USPTO record	In force	Ends no later than Mar 14, 2028	From the USPTO record
US 8,004,116	Highly efficient solar power systems In force Ends no later than Mar 14, 2028 · From the USPTO record	In force	Ends no later than Mar 14, 2028	From the USPTO record
US 8,093,756	AC power systems for renewable electrical energy In force Ends no later than Mar 14, 2028 · From the USPTO record	In force	Ends no later than Mar 14, 2028	From the USPTO record
US 8,242,634	High efficiency remotely controllable solar energy system In force Term ends Mar 14, 2028 · From the USPTO record	In force	Term ends Mar 14, 2028	From the USPTO record
US 8,304,932	Efficient solar energy power creation systems In force Term ends Mar 14, 2028 · From the USPTO record	In force	Term ends Mar 14, 2028	From the USPTO record
US 8,482,153	Systems for optimized solar power inversion In force Term ends Mar 14, 2028 · From the USPTO record	In force	Term ends Mar 14, 2028	From the USPTO record
US 9,673,630	Protected conversion solar power system In force Term ends Mar 14, 2028 · From the USPTO record	In force	Term ends Mar 14, 2028	From the USPTO record
US 10,326,283	Converter intuitive photovoltaic electrical energy power system In force Term ends Mar 14, 2028 · From the USPTO record	In force	Term ends Mar 14, 2028	From the USPTO record
US 10,886,746	Alternating conversion solar power system In force Term ends Mar 14, 2028 · From the USPTO record	In force	Term ends Mar 14, 2028	From the USPTO record

10 of 37 patents shown.

Pro members see all 37.

Pro members: see all 37 patents

Also on record, not counted in the 37: 3 lapsed for an unpaid fee. List them

Sources and methods

Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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Published applications

US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.

5 no status recorded

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